六溴环十二烷的溴含量快速检测方法

通过对前处理和滴定过程的考察,建立了快速检测阻燃剂六溴环十二烷中溴含量的方法。以NaOH和过氧化氢为吸收液,将有机物在氧瓶中燃烧,再用AgNO3标准溶液滴定,可实现溴含量的检测。该方法设备简单,操作方便、准确。     

Riemann problem of a Chapman-Jouguet combustion model for pressure-gradient system

In this paper,the Riemann problem of a Chapman-Jouguet combustion model for the pressure-gradient equations is considered.By analyzing in phase space,existence and uniqueness of the solution to the Riemann problem are obtained constructively under the global entropy conditions.     

随采随注浆预防采空区煤炭自燃的应用及效果分析

通过分析3623S综采工作面回采过程中存在的采空区内煤炭自燃的问题,提出了对该工作面采取随采随注的采空区注浆工艺方法。介绍了注浆工艺方法过程,简述了注浆工艺过程的控制,总结了注浆工艺过程的注意事项,分析了随采随注采空区注浆工艺效果。     

关于火电厂脱硝技术的分析研究

控制氮氧化物排放的主要措施有低氮燃烧与烟气脱硝。在分析低氮燃烧和烟气脱硝的主要技术方法及其各自特点的基础上,重点阐述选择性催化还原方法（SCR）的主要影响因素,并介绍了大唐安阳发电厂脱硝项目的概况。     

The evolution of waste into a resource: Examining innovation in technologies reusing coal combustion by-products using patent data

The reuse of waste begins with the development of new technologies for ways to use waste. Despite the critical role of innovation in waste reuse, innovation for waste reuse technologies has been largely overlooked in innovation studies. This paper presents the first patent study examining the innovation process for a specific waste reuse technology, to elucidate how waste evolves into a resource with a greater possibility of being used. This study specifically analyzes how innovation occurs, what drives it, and the consequences of this innovation. Coal combustion by-products (CCBs), which are solid residues generated from coal-fired utilities, are specifically examined as a test case because they have been promoted as a resource through century-long innovative efforts for use in construction, mining, and agricultural applications. Having examined more than 700 patents from the United States Patent and Trademark Office database, the results of this study show that innovation has primarily occurred: (1) to reuse CCBs, particularly fly ash, in various building, construction, and structural products; (2) by businesses, particularly those that need to use CCBs; and (3) since 1967, and the number of CCB-related patents peaked during the early 1980s and 1990s. For the drivers of innovation, this study identifies the impact of some market factors, such as cement and lime price, and institutional activities, such as the establishment of industrial associations that support CCB reuse, on patent filings. The role of regulation in innovation, however, is ambiguous with regard to CCB reuse. Although more CCBs have been used as more innovation occurs, the use of CCBs has increased with a lag, due to variation in the values of individual technologies and barriers to the implementation of technologies in the reuse market.     

煤炭自燃风险的定量评价研究

基于风险评价理论,针对煤炭自燃风险的固有危险性和危险性抵消因子两个方面进行研究,对煤炭自燃的风险进行了评价,实现了煤炭自燃风险的定量化。以具体实际矿井为例,根据固有危险性进行危险程度分级和根据危险性抵消因子进行控制程度分级,对矿井的防灭火工作具有现实的指导意义。     

火电燃煤锅炉NOx生成机理与燃烧优化技术的研究

煤燃烧的污染排放是我国主要大气污染源之一。分析了燃煤锅炉中NOx生成的机理,介绍了减少NOx生成和排放的工业技术,在对国内外燃煤锅炉燃烧优化技术研究现状综述的基础上,对前沿现代技术应用于燃烧优化控制的发展趋势进行了展望。     

降低汽车尾气中NO_X的技术进展

文章介绍了汽车尾气污染物的危害以及NOX的生成机理,从废气再循环技术、缸内直喷式燃烧技术、代用燃料、电子控制技术、催化还原技术等几个方面,对降低汽车尾气中NOX的排放技术进行了研究。     

食品专业化学热力学创新实验教学

结合食品专业实际,开展化学热力学创新实验教学研究。用山梨酸替代萘测定燃烧焓变改进了化学热力学传统实验项目;食用植物油热值的测定实验项目填补了食品专业化学热力学实验教学空白。这两项创新实验教学研究丰富了"物理化学"实验教学内容,取得了较好的教学效果。     

中国分散式民用供热技术现状分析

民用散煤污染是造成北方地区严重灰霾天气的重要原因之一,因此各地政府积极推进散煤替代,尤其是在京津冀地区大力推广所谓"清洁能源",进行煤改电/气相关工作,在周边地区则推行使用优质无烟煤或兰炭,但效果并不理想。文章对我国几种典型分散式民用供热技术进行了对比分析,认为推行煤改电/气需要考虑当地资源、地理和经济条件以及生活习惯,且最关键的是要在经济上可承受;在经济相对落后的边远农村地区推广诸如在解耦炉等环保炉具中燃烧烟煤型煤进行清洁供暖应当成为一项长期政策,以从根本上解决我国农村的散煤污染问题。